(19)
(11) EP 4 214 725 A1

(12)

(43) Date of publication:
26.07.2023 Bulletin 2023/30

(21) Application number: 21794273.9

(22) Date of filing: 14.09.2021
(51) International Patent Classification (IPC): 
H01F 1/00(2006.01)
(52) Cooperative Patent Classification (CPC):
H01F 1/0054
(86) International application number:
PCT/US2021/050269
(87) International publication number:
WO 2022/060732 (24.03.2022 Gazette 2022/12)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 17.09.2020 US 202063079875 P

(71) Applicant: NANOPHASE TECHNOLOGIES CORPORATION
Romeoville, IL 60446 (US)

(72) Inventors:
  • SARKAS, Harry, W.
    Romeoville, IL 60446 (US)
  • CURETON, Kevin
    Romeoville, IL 60446 (US)

(74) Representative: Titmus, Craig Edward et al
Mathys & Squire The Shard 32 London Bridge Street
London SE1 9SG
London SE1 9SG (GB)

   


(54) MAGNETIC BEADS, METHOD OF MAKING AND METHOD OF USE THEREOF